What PRIMARY LATERAL SCLEROSIS means: Primary Lateral Sclerosis - (PLS) is a rare neuromuscular disease characterized by progressive muscle weakness in the voluntary muscles. PLS belongs to a group of disorders known as motor neuron diseases. Motor neuron diseases develop when the nerve cells that control voluntary muscle movement degenerate and die, causing weakness in the muscles they control. Onset of PLS usually occurs after age 50. Symptoms may include difficulty with balance, weakness and stiffness in the legs, and clumsiness. Other symptoms may include spasticity (sudden, involuntary muscle spasms) in the hands, feet, or legs; foot dragging, and speech problems due to involvement of the facial muscles. The disorder usually begins in the legs, but it may also start in the tongue or the hands.
- Definition Pelizaeus-Merzbacher Disease:
- Dictionary Merzbacher Disease - PMD) is a rare, progressive, degenerative central nervous system disorder in which coordination, motor abilities, and intellectual function deteriorate. The disease is one of a primary lateral sclerosis definition.
- Definition Prosopagnosia:
- Dictionary Prosopagnosia is a neurological disorder characterized by the inability to recognize faces. Prosopagnosia is also known as face blindness or facial agnosia. The term prosopagnosia comes from the primary lateral sclerosis explain.
- Definition Pseudotumor Cerebri:
- Dictionary Pseudotumor cerebri literally means "false brain tumor." It is likely due to high pressure caused by the buildup or poor absorption of cerebrospinal fluid in the subarachnoid space primary lateral sclerosis what is.
- Definition Peripheral Neuropathy:
- Dictionary Neuropathy - describes damage to the peripheral nervous system, the vast communications network that transmits information from the brain and spinal cord (the central nervous system) to every other primary lateral sclerosis meaning.
